It is about the electric voltage and current flows to human body.?

Question

I heard from most old and experience people in the field of electricity.That once you touched any live wire which having 110 V or 220V on it, make sure do not hold it loosely. Make a tight grip on it otherwise it is more danger if held loosely. But if we based the OHM's law the resistance is inverse to current considering voltage is constant. The more current flows to the body the more danger it will be, right? If then, does this mean that the harder your grip will be the more resistance it makes. This is wrong because the tighter your grip will be lesser resistance it will make and more current flows to the body. Can anybody explained this one?

Answer 1

Jeez, what nonsense - don't believe it at all. Take it from someone who's been bit quite a few times by a variety of voltages over the last 30 years, you do NOT want to assist the current flow thru your body in any way, including by attempting to lower the resistance - that is, if you could at all. The instinct to jerk n' jump, plus whatever muscle spasms the juice will induce, make it pretty hard to follow such advice anyway, thank God.

FYI, the human body can be compared to a 1/2W 1Mohm resistor - whatever source can blow such a resistor is considered generally fatal. The 1M value can be much lower if you're a little sweaty. WAY lower. But still only 1/2W.
.

Answer 2

I hear that other answer about how it's amperage that kills so much it makes me sick. Yes, technically it is the amperage that kills. But through a given resistance, what does it take to create that amperage? You guessed it--the voltage!

50 volts or less is not likely to hurt you, because of the relatively high resistance through your body.

Often, people are afraid to touch a car battery, because it can produce extremely high amperages. Thing is, at only 12 volts the likekihood of shock, much less electrocution, is extremely small. You've heard the nightmare stories about a screwdriver being melted when dropped across the posts of a battery? Those stories could be true, but keep in mind, a screwdriver has a fraction of one ohm of resistance--many times less than your body!

Now, to answer your question about 110 and 220 volt lines--a looser grip is more likely to allow for arcing, which can cause severe burns to your skin. Other than that, you are right, namely, that a tighter grip will produce a path of lower resistance and therefore higher amperage. Either way, you're in for a world of hurt!

Answer 3

1 When holding a 110 or 220 volt wire, you don't have much control about how tight you hold it!

2. tight or loose, if you're grounded somewhere, there's enough voltage to overcome surface resistance. Once broken down it is no longer part of the circuit, current flows in the low resistance fibers beneath the skin. See also answer 1.

Answer 4

Depending on the voltage of the electric current

Answer 5

It is all based on the source of ground, probably your feet if your standing. What your standing on is also relevant. Hold a piece of metal as close as you can to a hot wire without touching it. The voltage will jump without resistance. But dude was right up top it's the amps that get you. Touch a hot receptacle and then try a lighting load.

Answer 6

The main risk of electrocution at that voltage is heart failure.

I don't think it matters whether you try to grip tightly or loosely, as you will lose control over the muscles in that part of your body. The AC coming from the wire will override any nerve signals coming from your brain.

Answer 7

Current in amps going through the body will less likely kill a person than the milliamps which would paralyze the heart. With large amperage the heart and all other muscle just clamp down and hold.

Answer 8

The above response is correct. LOL

Answer 9

it's not the voltage that is dangerous. it's the amperage that kills people.